by the fbi. that's right, the fbi, which sometime during the summer investigated harassing e-mails sent to this woman, petraeus family friend jill kelly. that probe determined that the e-mails, which included an admonition to, quote, back off, came from paula broadwell. while combing through broadwell's e-mails they came upon david petraeus. let's stop it here and bring in suzanne -- suzanne kelly in washington, our intelligence correspondent. suzanne, a lot of ground to cover here. we have this video that has surfaced of paula broadwell, last month, speaking at the university of denver and she's speaking here as david petraeus' biographer about the deadly attack on the u.s. consulate in benghazi, libya. let's take a listen. >> i don't know if a lot of you heard this, but the cia an annex had taken a couple prisoner and they think the attack on the consulate was an attempt to get the prisoners back. that's still being vetted. >> where did she hear that? did it come from david petraeus and do we know if her claim was true, the cia was holding captives inside a consular annex in benghazi?